Detail Information

Publications23

David S RichardsonCentre for Ecology, Evolution and Conservation, School of Biological Sciences, University of East Anglia, Norwich NR4 7TJ, United KingdomEvolution 58:2037-48. 2004

..Our results show that inbreeding can have complicated effects even within a genetic bottlenecked population where the "purging" of recessive alleles is expected to reduce the effects of inbreeding depression...

Grandparent helpers: the adaptive significance of older, postdominant helpers in the Seychelles warbler

David S RichardsonCentre for Ecology, Evolution and Conservation, School of Biological Sciences, University of East Anglia, Norwich, NR4 7TJ, United KingdomEvolution 61:2790-800. 2007

..As direct benefits appeared to be limited, we suggest that indirect benefits have driven the evolution of such "grandparent helpers." This study now provides evidence for a new route to cooperative breeding in birds...

MHC-based patterns of social and extra-pair mate choice in the Seychelles warbler

David S RichardsonCentre for Ecology, Evolution and Conservation, School of Biological Sciences, University of East Anglia, Norwich NR4 7TJ, UKProc Biol Sci 272:759-67. 2005

..As female choice will result in offspring of higher MHC diversity, MHC-dependent EPP may provide indirect benefits in the Seychelles warbler if survival is positively linked to MHC diversity...

The impact of translocations on neutral and functional genetic diversity within and among populations of the Seychelles warbler

..We suggest that the creation of new variants by gene conversion is the predominant mechanism generating MHC variation in genetically depauperate populations, thus allowing them to respond to pathogenic challenges...

..This pattern and effect of MHC diversity in our population could reflect the processes ongoing in similarly small, fragmented natural populations...

Population history of Berthelot's pipit: colonization, gene flow and morphological divergence in Macaronesia

Juan Carlos IlleraCentre for Ecology, Evolution and Conservation, School of Biological Sciences, University of East Anglia, Norwich NR4 7TJ, UKMol Ecol 16:4599-612. 2007

..The observed genetic and morphological differences may therefore be the result of differing patterns of selection pressures between populations, with Berthelot's pipit undergoing a process of incipient differentiation...

MHC diversity in two Acrocephalus species: the outbred Great reed warbler and the inbred Seychelles warbler

..There was evidence for balancing selection in both species, and the phylogenetic analysis showing that the exon 3 sequences did not separate according to species, was consistent with transspecies evolution of the MHC...

Experimental evidence that kin discrimination in the Seychelles warbler is based on association and not on genetic relatedness

..We conclude that T is involved in sexual courtship displays and mate guarding, but not in gaining EGCs. These findings contrast with those in other species where EGP involves elaborate sexual displays...